Near-to-eye display artifact reduction system and method

• US 9,389,419 B2
• Filed: 08/14/2008
• Issued: 07/12/2016
• Est. Priority Date: 08/14/2008
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Cernasov, Andrei
• Primary Examiner(s): CERULLO, LILIANA P
• Application Number:
  US12/191,467
• Publication Number:
  US 20100039353A1
• Time in Patent Office: 2,889 Days
• Field of Search: 345690-693, 345 7- 9, 345 87- 89, 345/102, 340/901, 359630-633
• US Class Current: 1/1
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/017 Head mounted

Abstract

A near-to-eye (NTE) display system and method are provided for reducing artifact display in a NTE display that is worn, at least partially, on a viewer'"'"'s head. The movement of the NTE display is sensed while displaying an image that comprises individual content frames on the NTE display. A characteristic of the individual content frames of the displayed image is varied based on the sensed movement.

Claims

1. A method of reducing display artifacts in a near-to-eye (NTE) display that is worn, at least partially, on a viewer'"'"'s head, comprising the steps of:

receiving one or more signals;

successively rendering, in response to the one or more signals, an image comprising successive individual content frames to be displayed on the NTE display;

sensing a movement rate of the NTE display while displaying an image on the NTE display; and

varying an individual content frame in the successively rendered image of successive individual content frames based on the sensed movement rate,

wherein the varying of the individual content frame comprises

varying content of the individual content frame by implementing a two-dimensional (2D) image filter and varying the 2D image filter based on the sensed movement rate of the NTE display.

2. The method of claim 1, further comprising:

decreasing a brightness if the sensed movement increases; and

increasing the brightness if the sensed movement decreases.

3. The method of claim 1, wherein the step of varying the 2D image filter comprises varying at least one cut-off frequency of a 2D low-pass filter.

4. The method of claim 3, further comprising:

varying the at least one cut-off frequency inversely with the sensed movement.

5. The method of claim 4, further comprising:

decreasing the at least one cut-off frequency if the sensed movement increases; and

increasing the at least one cut-off frequency if the sensed movement decreases.

6. A near-to-eye (NTE) display system, comprising:

a NTE display adapted to be disposed adjacent to a viewer'"'"'s head and to receive one or more signals, the NTE display configured, in response to the one or more signals, to successively render an image comprising successive individual content frames to be displayed on the NTE display to the viewer, the displayed image comprising individual content frames;

a sensor configured to sense movement rate of the NTE display and supply a sensor signal representative thereof; and

a processor in operable communication with the NTE display and the sensor, the processor configured to render the image on the NTE display and responsive to the sensor signal to vary an individual content frame in the successively rendered image of successive individual content frames based on the sensed movement rate,

wherein the varying of the individual content frame comprises

varying content of the individual content frame by implementing a two-dimensional (2D) image filter and varying the 2D image filter based on the sensed movement rate of the NTE display.

7. The system of claim 6, wherein the processor is further responsive to the sensor signal to:

decrease a brightness of the individual content frames if the sensed movement increases; and

increase the brightness of the individual content frames if the sensed movement decreases.

8. The system of claim 6, wherein:

the 2D image filter is a 2D low-pass filter having at least one cut-off frequency; and

the processor is further responsive to the sensor signal to vary the at least one cut-off frequency of the 2D low-pass filter.

9. The system of claim 8, wherein the processor is further responsive to the sensor signal to vary the at least one cut-off frequency inversely with the sensed movement.

10. The system of claim 9, wherein the processor is further responsive to the sensor signal to:

decrease the at least one cut-off frequency if the sensed movement increases; and

increase the at least one cut-off frequency if the sensed movement decreases.